EP2624415A1 - Elektrischer Motor mit einer haken aufweisenden Verbindunsplatte - Google Patents

Elektrischer Motor mit einer haken aufweisenden Verbindunsplatte Download PDF

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Publication number
EP2624415A1
EP2624415A1 EP13153668.2A EP13153668A EP2624415A1 EP 2624415 A1 EP2624415 A1 EP 2624415A1 EP 13153668 A EP13153668 A EP 13153668A EP 2624415 A1 EP2624415 A1 EP 2624415A1
Authority
EP
European Patent Office
Prior art keywords
connection
stator
phase
bridge
coil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP13153668.2A
Other languages
English (en)
French (fr)
Inventor
Jean-Marcel Aubry
Luc Brami
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Flex N Gate France SAS
Original Assignee
Phenix International
Faurecia Bloc Avant SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Phenix International, Faurecia Bloc Avant SAS filed Critical Phenix International
Publication of EP2624415A1 publication Critical patent/EP2624415A1/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/52—Fastening salient pole windings or connections thereto
    • H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
    • H02K3/522—Fastening salient pole windings or connections thereto applicable to stators only for generally annular cores with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2203/00—Specific aspects not provided for in the other groups of this subclass relating to the windings
    • H02K2203/09—Machines characterised by wiring elements other than wires, e.g. bus rings, for connecting the winding terminations
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2203/00—Specific aspects not provided for in the other groups of this subclass relating to the windings
    • H02K2203/12—Machines characterised by the bobbins for supporting the windings

Definitions

  • Such a motor has a large number of applications, particularly in a motor vehicle for example for steering assistance, the actuation of a motor-fan unit, the operation of aerators or other.
  • Such an engine must therefore be compact and lightweight.
  • each winding or coil of the stator is traversed by an electric current, which induces in this winding a magnetic field.
  • the sum of the magnetic fields induced at the stator creates a rotating magnetic field of the stator, which cooperates with the permanent magnetic field created by the permanent magnets of the rotor to rotate the rotor, and thus the motor shaft which is integral therewith .
  • each winding is electrically connected to a power source.
  • the windings are connected between a common point and a power phase in the case of mounting said "star", and between two phases of supply in the case of mounting said "triangle". Thus, two electrical connections must be made for each winding.
  • the object of the invention is to propose an electric motor that is easy to assemble, and in particular that can be assembled automatically.
  • the subject of the invention is an electric motor of the aforementioned type, in which one end of each coil assembly is connected to one end of another coil assembly by a connecting bridge, the connection plate comprising a set of connection tracks comprising at least one phase track, electrically connected to a phase of the power source, the or each phase track being provided with a phase electrical connection hook, electrically connected to a corresponding first connecting bridge so as to electrically connect this first connection bridge to the corresponding phase of the power source.
  • the subject of the invention is a brushless electric motor (also called a "brushless motor") comprising a stator 4 and a rotor (not shown) capable of rotating a shaft of the electric motor.
  • the rotor includes permanent magnets. This is for example a buried magnet rotor or a magnet rotor deposited.
  • stator 4 coiled star and supplied with three-phase current.
  • the invention also applies to a stator 4 supplied with single-phase or two-phase or three-phase current wound in a triangle.
  • the term "longitudinal direction” is the direction in which the central axis A of the stator body 5 extends.
  • the terms “inside” and “outside” are used with reference to the axis A of the stator 4, the distance to axis A increasing from the inside to the outside.
  • the stator body 5 has a substantially cylindrical shape with a central axis A, parallel to the axis of the shaft driven in rotation of the electric motor.
  • the stator body 5 is in particular of cylindrical shape with a circular base.
  • the motor is an internal rotor motor.
  • the teeth 16 extend radially inwardly, that is to say in the direction of the axis A of the stator 4, from the stator body 5.
  • the teeth 16 are made of a ferromagnetic material, conductive magnetic flux.
  • the stator 4 comprises twelve teeth 16.
  • the stator 4 comprises any other number of teeth 16 adapted.
  • connection plate 12 is arranged on a face of the stator 4. It extends substantially transversely to the longitudinal direction A.
  • the front face 14 of the stator 4 is called the face of the stator 4 on the side of which the connection plate 12 is arranged.
  • the terms “front” and “rear” are used with reference to the face before 14 of the stator 4.
  • each coil assembly 8 includes a first end 30 and a second end 35.
  • Each end 30, 35 is formed by a portion of the winding wire wound around the corresponding teeth 16 protruding from a coil 10 of the coil assembly. 8.
  • the first end 30 is connected to a corresponding end of another coil assembly 8 by a first connection bridge 37.
  • the second end 35 is connected to a corresponding end of another coil assembly 8 by a second bridge.
  • the connecting bridge 37, 39 is in the form of a wire.
  • each coil assembly 8 is formed by a coil 10 wound around a corresponding tooth 16.
  • the first connection bridge 37 extends along the circumference of the stator 4 between the first coil and the second coil.
  • the second connection bridge 39 extends along the circumference of the stator 4 between the first coil and the third coil.
  • first, second and third coils are made from the same winding wire.
  • the first connecting bridge 37 is then formed by the portion of the winding wire extending between the first end 30 of the first coil and the corresponding end of the second coil.
  • the second connection bridge 39 is formed by the portion of the winding wire extending between the second end 35 of the first coil and the corresponding end of the third coil.
  • the winding wire is for example a copper wire surrounded by a sheath made of an insulating electrical material.
  • connection bridges 37, 39 extend on the front face 14 of the stator 4, that is to say on the side of the connection plate 12. They extend substantially externally to the coils 8.
  • Each connection bridge 37 , 39 comprises, on a portion extending substantially along the circumference of the stator 4, a connection zone 41, 42 intended to come into contact with a corresponding electrical connection hook of the connection plate 12, as will be described later.
  • connection area 41, 42 of each connecting bridge 37, 39 is spaced axially from the front coil heads 43 located on the side of the connection plate 12.
  • front coil head is meant the end portion of the coil 10s extending towards the connection plate 12.
  • the connection zone 41, 42 extends forward of the front coil head 43.
  • the winding wire portion forming the connecting bridge 37, 39 bears on guide surfaces provided on the stator 4.
  • the guide surfaces are adapted to guide the winding wire respectively between the first and the second coil and between the first and the third coil so as to form the connection bridges 37, 39 connecting these coils.
  • the stator 4 comprises first guide surfaces 40 and second guide surfaces 45.
  • the second guide surfaces 45 are arranged at a height different from that of the first guide surfaces 40, the height being taken parallel to the direction. longitudinal.
  • the first guide surfaces 40 and the second guide surfaces 45 are substantially parallel to each other. They extend substantially normally to the longitudinal direction. In particular, they extend substantially parallel to the circumference of the stator 4.
  • the part of the winding wire forming the connecting bridge 37, 39 is respectively supported on at least two first guide surfaces 40 or on at least two second guide surfaces 45, spaced along the circumference of the stator 4.
  • the connection 41, 42 of a given connecting bridge 37, 39 is formed on the portion of the connecting bridge 37, 39 extending circumferentially between two adjacent first guide surfaces 40 or between two adjacent second guide surfaces 45 on which the connection bridge 37, 39 is supported.
  • the guiding surfaces thus provide the axial spacing of the connection zone 41, 42 with respect to the front coil heads 43. They also ensure the positioning of the connection zone 41, 42 with respect to the corresponding electrical connection hook. Finally, they ensure the maintenance of the electrical connection zone 41, 42 with respect to the corresponding electrical connection hook in the desired position when the connection plate 12 is put in place.
  • the guide surfaces 40, 45 are more particularly provided on the insert 50.
  • the insert 50 is illustrated more particularly on the figure 5 . It has, in the example shown, a substantially cylindrical contour of axis coinciding with the central axis A of the stator 4. It has an outer diameter substantially equal to that of the stator 4, in particular of the stator body 5.
  • the insert 50 is made in one piece, for example by molding. It is for example made of an electrical insulating material, especially plastic material.
  • the insert 50 comprises a flange 55 extending along the circumference of the stator 4. This flange 55 extends in a plane substantially perpendicular to the longitudinal direction. It is supported on the stator body 5. In the embodiment shown, the flange 55 is substantially annular.
  • the insert 50 further comprises a plurality of insulating members 57 projecting radially inwardly. Each of these insulating members 57 is placed on the front end of a corresponding tooth 16 so as to fit the front surface and the lateral surfaces of this tooth 16 over at least a part of their height, taken according to the longitudinal direction. The inner surface of the tooth 16 is left free so as not to hinder the flow of the magnetic flux from the tooth 16 towards the air gap of the motor.
  • the coils 10 are formed on the insulating members 57 of the insert 50.
  • the insulating member 57 is interposed between the front coil head 43 and the tooth 16.
  • the insulating members 57 have the function of electrically insulating the coils 10 of the teeth 16.
  • the insulating members 57 are integral with the flange 55.
  • each insulating member 57 is provided with a locking wall 58 projecting forwards from a front surface 59 of the insulating member 57.
  • This locking wall 58 has to function to block the winding 10 formed around the corresponding tooth 16 against an inward displacement of the stator 4.
  • the insert 50 further comprises a plurality of guide tabs 60 protruding forwardly from the flange 55.
  • the guide tabs 60 are integral with the flange 55.
  • the first and second guide surfaces 40, 45 are provided on the guide tabs 60.
  • some guide tabs 60 comprise a first guide surface 40 and a second guide surface 45.
  • Other guide tabs 60 comprise only a first guide surface 40.
  • Certain guide tabs 60 further comprise a blocking surface 65 ( figure 5 ). The locking surface 65 overcomes the first guide surface 40. The portion of the winding wire bearing on the first guide surface 40 is retained against a forward movement in the longitudinal direction by the surface. blocking 65.
  • the insert 50 is further provided with at least one securing member 70 of the insert 50 to the connection plate 12.
  • the securing member 70 is formed by a latching lug.
  • the latching lug cooperates with a flange 75 provided on the connection plate 12.
  • the flange 75 is annular in the example shown.
  • the insert 50 comprises three securing members 70.
  • Each securing member 70 comprises a bearing surface 71, receiving in longitudinal support the connection plate 12.
  • connection plate 12 comprises a set of connection tracks.
  • the set of connection tracks comprises phase tracks, each electrically connected to a respective phase of the power source and a common track.
  • the common track is, according to one embodiment, connected to ground.
  • the set of connection tracks comprises only phase tracks and does not include a common track.
  • Each connection track is formed by a conductive part of electric current.
  • the electrically conductive part is made of a material that conducts electrical current, in particular brass or copper.
  • each electrical current conducting part is formed by a connection strip 80 made of an electrically conductive material.
  • Each connecting strip 80 has a shape of an arc of a circle.
  • the connection plate 12 thus has a substantially annular shape.
  • Each connecting strip 80 has for example a section approximately equal to 6 mm 2 .
  • Each connecting strip 80 is provided with electrical connection hooks 86. These hooks 86 project outwardly from an outer edge of the corresponding connecting strip 80. They are bent towards the coils 10 of the stator 4 in the longitudinal direction. They have a concavity directed towards the coils 10. In other words, the hooks 86 are curved towards the rear.
  • Each connecting hook 86 comprises a hook bottom intended to come into contact with a respective contact zone 41, 42.
  • Each hook base extends substantially perpendicular to the longitudinal direction, and in particular along the circumference of the stator 4.
  • connection strips forming the phase tracks will be called “phase bands” 88 and the connection band forming the common track is called “common band” 90.
  • the connecting hooks of the strip phase 88 are called “phase hooks” 92.
  • the connecting hooks of the common band 90 are called “common hooks” 94.
  • the phase hooks 92 and the common hooks 94 are alternately arranged along the circumference of the connecting plate 12.
  • the phase hooks 92 project outwardly from the connection plate 12 at a first height
  • the common hooks 94 project outwardly from the connecting plate 12 at a second height. Height is measured along the longitudinal direction.
  • the common hooks 94 are in particular arranged forward with respect to the phase hooks 92. In the example shown, all the phase hooks 92 are arranged at the same height. All common hooks 94 are arranged at the same height.
  • phase strips 88 are substantially concentric with axis coinciding with the central axis A of the stator 4. They each have substantially the shape of a cylinder portion of axis A.
  • Each phase band 88 has for example a thickness of about 1 mm, taken in the radial direction of the stator 4 and a width of about 6 mm, taken parallel to the longitudinal direction of the stator 4.
  • Each phase band 88 comprises, at a first end , a connection terminal 100 to the corresponding phase of the power source.
  • the connection terminals 100 of the different phase bands are adjacent along the circumference of the connection plate 12.
  • the common band 90 is substantially planar. It has a substantially annular shape. It extends substantially perpendicular to the direction of the central axis A of the stator 4. It extends to the front of the phase bands 88.
  • the number of phase bands 88 is equal to the number of phases of the supply current supplied by the power source.
  • the set of connecting tracks of the connection plate 12 is formed by three phase bands 88, each connected to a respective phase of the power source and a common band 90.
  • each phase band 88 has two phase hooks 92.
  • the phase hooks 92 of each phase band 88 are disposed on the phase band 88 diametrically opposite in pairs.
  • the connection plate 12 thus comprises 6 phase hooks 88.
  • the common band 90 has six common hooks 94.
  • the sum of the number of phase hooks 92 and the number of common hooks 94 is equal to the number of stator coils 10 4.
  • connection strips 80 are mechanically interconnected to form the connection plate 12, thus forming a single piece assembly that is easy to handle.
  • they are secured together by overmolding with a plastic material. Overmolding by the plastic also insulates the connecting strips between them.
  • the connection plate 12 thus formed then has a substantially annular shape.
  • the over-molding of the connecting strips 80 to form the connection plate 12 is advantageous because it ensures a good maintenance of the connection strips 80 within the connection plate 12, and in particular to avoid their relative displacement. In addition, it is a simple method of joining and inexpensive to implement.
  • the connecting strips 80 are secured to each other by snapping. According to a second variant not shown, the connecting strips 80 are arranged in a common cover.
  • connection hooks 86 of the connection plate 12 are each arranged to the right of a connection zone 41, 42 of a corresponding connection bridge 37, 39 when the connection plate 12 is assembled on the stator 4. They are each in contact with a respective connection zone 41, 42, in particular by the bottom of the hook 86.
  • the electrical contact between the connection hook 86 and the connection zone 41, 42 is achieved by welding the connection hook 86 to the bridge corresponding connection 37, 39 in the connection area 41, 42.
  • connection bridge 37, 39 has a single connection zone 41, 42 with a connection hook 86 of the connection plate 12.
  • connection hook 86 and the connection zone 41 of the first connecting bridge 37 corresponding, the first end 30 of the first coil and the corresponding end of the second coil interconnected by the first connecting bridge 37 are each electrically connected to the connecting strip 80 to which the hook of 86.
  • Two electrical connections are thus made at each contact between a hook 86 and a first connection bridge 37.
  • the same result is obtained for the second end 35 of the first coil and the corresponding end of the third coil connected. between them by the second connection bridge 39.
  • each coil 10 is electrically connected to a corresponding phase strip 88 via a phase hook 92 in contact with the connection zone 41 of the first connection bridge. 37 and the other end of each coil 10 is electrically connected to the common band 90 via a common hook 94 in contact with the connection area 42 of the second connection bridge 39.
  • connection plate 12 thus distributes the supply current from the power source to the various coils 10 according to a predefined electrical connection diagram, known per se according to the power supply mode of the motor.
  • first connection bridges 37 bear against the first guide surfaces 40.
  • the connection zone 41 of the first connection bridge 37 extends between two adjacent first guide surfaces 40. These guide surfaces 40 maintain the connection zone 41 substantially perpendicular to the longitudinal direction, that is to say substantially horizontal in the example shown.
  • the second connecting bridges 39 bear on the second guide surfaces 45.
  • the connection zone 42 of the second connection bridge 39 extends between two adjacent second guide surfaces 45. These guide surfaces 45 maintain the connection zone 42 substantially perpendicular to the longitudinal direction, that is to say substantially horizontal in the example shown.
  • the first guide surfaces 40 are arranged at a height corresponding to the height of the bottoms of the phase hooks 92 when the connection plate 12 is in its assembled position, that is to say when it is secured to the stator 4, in particular by means of the securing members 70.
  • the second surfaces guide 45 are arranged at a height corresponding to the height of the bottoms of the common hooks 94 when the connection plate 12 is in its assembled position.
  • phase hooks 92 project from the connection plate 12 behind the common hooks 94.
  • the first guide surfaces 40 are arranged behind the second guide surfaces 45.
  • a stator body 5 is provided with the side of the front face 14 of an insert 50.
  • the coils 10 are then formed by winding a winding wire around each tooth 16 of the stator 4.
  • connection bridge 37, 39 the portion of the winding wire forming the connection bridge 37, 39 is brought to bear either against the first guide surfaces 40, or against the second guide surfaces 45 .
  • the connecting bridge is a first connection bridge 37
  • the portion of the wire forming the first connecting bridge 37 is brought into abutment against the first guide surfaces 40.
  • the first connection bridge 37 is also locked longitudinally against a forward movement by the locking surface 65.
  • the connecting bridge is a second connecting bridge 39
  • the part of the winding wire forming the second connecting bridge 39 is brought in abutment against the second guide surfaces 45.
  • the winding of the winding wire and the passage of this winding wire on the guide surfaces 40, 45 can be performed automatically during the realization of the motor winding. It is known to realize the windings of the motor automatically by means of a winding tool. According to the invention, the winding of each coil 10 is followed by the introduction of the winding wire on the guide surfaces 40, 45, this setting up being carried out automatically by the winding tool.
  • connection plate 12 On the assembly formed by the stator 4, the insert 50 and the coils 10 to reach the assembled position, in which the securing members 70 are snapped onto the rim annular 75 of the connection plate 12.
  • the connection plate 12 rests on the bearing surfaces 71 of the securing members 70.
  • each connection hook 86 is in contact with the connection zone 41, 42 of the connection bridge 37, 39 corresponding, that is to say that the phase hooks 92 are each in contact with the connection areas 41 of the first corresponding bridges 37 and the common hooks 94 are each in contact with the connection areas 42 of the corresponding second bridges 39.
  • connection hooks 86 The contacting of the connection hooks 86 with the bridges 37, 39 does not require any additional operation of positioning the hook 86 relative to the connection bridge 37, 39 respectively.
  • the position of the connection terminals 100 indicates the initial orientation to be given to the connection plate 12. During the approach operation, it is not necessary to reposition the hooks 86, which are then automatically in the correct position. This facilitates the automation of the assembly step of the connection plate 12.
  • Each connection hook 86 thus comes into contact with the connecting bridge 37, 39 corresponding simply by the displacement of the connection plate 12 towards the stator 4.
  • connection plate 12 has been previously formed by securing the connecting strips 80 to each other, for example by overmolding with a plastic material, by clipping or by arrangement in a common cover.
  • connection bridges 37, 39 are welded to the corresponding connection hooks 86 so as to electrically connect the connection bridges 37, 39 to the connection hooks 86. corresponding, and therefore corresponding connection strips 80.
  • the welding operation causes the insulating sheath of the winding wire to melt at the welding zones.
  • connection bridges 37, 39 which define connection zones 41, 42, the position of which is defined in such a way that precise.
  • the precise positioning of the connection zones 41, 42 is made possible, in the specific example, by the bearing surfaces 40, 45 provided on the insert 50 of the stator 4.
  • the precise positioning of the connecting bridges 37, 39 ensures that the connection hooks 86 will come into contact with the connection bridges 37, 39 in the desired connection area 41, 42 according to a predefined desired connection pattern.
  • connection strips 80 which each dispense the electric current from a given phase of the power source to different windings.
  • the structure of the connection plate 12 in the form of connection strips 80 thus avoids a multiplication of the connection wires between the power source and the windings.
  • connection bridges 37, 39 extending between two coils 10 makes it possible to reduce the number of necessary connections (in the case represented, 12 connections instead of 24 according to the state of the art), each zone of connection 41, 42 being common to two windings connected by a connection bridge 37, 39.
  • connection plate 12 horizontal in the figures
  • the figure 6 illustrates an example of a winding scheme of the stator 4 according to the first embodiment.
  • Each horizontal rectangle in the lower part of the figure 6 materializes a hook connection 92 or 94 in contact with a connection area of a respective connecting bridge 37, 39 corresponding.
  • the connection areas 41, 42 of the connecting bridges 37, 39 are represented by the continuous horizontal lines in the lower part of the figure 6 , on which are drawn the rectangles corresponding to the connecting hooks 86 associated.
  • the hooks 86 corresponding to the same electrical potential are represented on the same horizontal line.
  • the common hooks 94 are represented on a first horizontal line 200.
  • These common hooks 94 impose a potential identical to each of the connection areas 42 of the connecting bridges 39 with which they are in contact so as to form the common point of the assembly in star, still called neutral point. They are for example connected to ground via the corresponding connection strip 80.
  • the phase hooks 94 are distributed over three horizontal lines each corresponding to a phase of the power source.
  • the assembly of the figure 6 corresponds to a star arrangement with, for each phase, two series of two coils 10 connected in series, the two series being connected together in parallel, connected between the corresponding phase of the power source via a phase hook 92 and the common point through a common hook 94.
  • Each common hook 94 and each phase hook 92 is common to two coils 10.
  • FIGS. 7 to 12 illustrate a stator 4 'according to a second embodiment. Only the differences with respect to the first embodiment are described below. Identical reference numbers have been used to designate elements similar to those of the first embodiment.
  • each coil assembly 8 is formed of two coils 10 connected in series.
  • Each coil 10 of the coil assembly 8 includes a first end respectively forming the end 30, 35 of the coil assembly 8 and a second end 110, 112.
  • the second ends 110, 112 of the coils 10 of the assembly 8 are connected together without passing through a connection bridge 37, 39.
  • the coils 10 of a coil assembly 8 are thus connected in series.
  • the series-connected coils 10 are coils adjacent to the circumference of the stator 4.
  • connection plate 12 is simplified with respect to the connection plate according to the first embodiment.
  • the number of connection hooks 86 is equal to the number of coil assemblies 8, that is to say to half the number of coils 10 of the stator 4.
  • the Connection plate 12 comprises exactly one phase hook 92 per phase of the power source. It further comprises three common hooks 94. More specifically, each phase band 88 comprises exactly one phase hook 92 and the common band 90 comprises exactly three common hooks 94.
  • the sum of the number of phase electrical connection hooks 92 and the number of common electrical connection hooks 94 is equal to half the number of coils 10 of stator 4.
  • connection plate 12 for each group of two coils 10, only two electrical connections to the connection plate 12 (to the phase and the common point in the case of the star coil) are necessary.
  • a single connection hook 86 makes the electrical connection to two sets of coil 8 as explained with reference to the first embodiment, which further simplifies the connection.
  • the connecting strips 80 each have a cylindrical portion of a circular base of axis coinciding with the axis A of the stator 4.
  • Each band connection 80 has for example a thickness of about 1 mm, taken in the radial direction of the stator 4 and a height of about 4 to 6 mm, taken parallel to the longitudinal direction of the stator 4.
  • the connection strips 80 have substantially identical heights. They are arranged substantially concentrically within the connecting plate 12.
  • the connecting plate 12 has an annular shape, in particular substantially cylindrical with a circular base. The fact of providing a connection plate 12 comprising only concentric connection strips in the form of a cylinder portion results in a saving of space in the radial direction of the stator 4. Indeed, the bulk of the connection plate 12 according to FIG. the radial direction is then relatively small since it is approximately equal to the sum of the thicknesses of the connecting strips 80.
  • the hook or hooks 86 project outwardly from the outer wall of the connecting strip 80, in particular an outer rear edge of the respective connecting strip 80. They extend substantially in a radial direction.
  • the curved portion of the connecting hooks 86 in contact with a connection area 41, 42 is spaced from the outer wall of the connecting strip 80 in the radial direction.
  • connection plate 12 The free space between the outer wall of the connection plate 12 and the connection zones 41, 42 extending between the bearing surfaces 40, 45 of the guide tabs 60 makes it possible to provide a spacing between the outer wall of the connecting plate 12 and the curved portion of the connecting hooks 86 large enough to allow the passage of welding electrodes that perform the welding of the hooks 86 on the connection areas 41, 42.
  • the automation of the welding operation s' find it easier. This spacing is for example greater than or equal to 6 mm.
  • the insert 50 comprises, on guide tabs 60 comprising second bearing surfaces 45, a spacing rib 105.
  • This spacing rib 105 extends rearward substantially parallel to the longitudinal direction from the second bearing surface 45. It blocks a connecting bridge 37 corresponding to a forward displacement and thus ensures the spacing in the longitudinal direction between the connecting bridge 37 and the connection area 42 s extending to the right of this connection bridge 37.
  • the spacer rib 105 facilitates the automation of the assembly of the stator 4 by ensuring that the phase hook 94 intended to come into contact with the connection zone 42 does not come simultaneously in contact with the connection bridge 37.
  • the figure 12 illustrates a winding diagram of the stator 4 'shown in FIGS. Figures 7 to 11 .
  • the assembly of the figure 12 corresponds to a star arrangement with, for each phase, two coil assemblies 8 connected in parallel.
  • Each coil assembly 8 is connected between the corresponding phase of the power source (via a phase hook 92) and the common point of the star assembly (via a common hook 94).
  • Each phase hook 92 is common to two coil assemblies 8.
  • each phase winding, consisting of the two coil assemblies 8 connected in parallel is connected to exactly one phase hook 92.
  • each common hook 94 is common to two sets of coil 8.
  • each phase winding, consisting of two coil assemblies 8 connected in parallel is connected to exactly one common hook 94.
  • connection plate 12 comprises exactly one phase hook 92 per phase, and three common hooks 94.
  • the winding of the stator 4, 4 'according to the first or the second embodiment is carried out when the stator body 5 has its substantially final cylindrical shape, that is to say when the stator body 5 is closed.
  • the winding of the stator 4, 4 ' is made flat, that is to say with a substantially plane stator body 5, before the stator body 5 is closed on itself to achieve its substantially cylindrical final. Once the winding is completed, the body of the stator 5 is closed on itself to give it its substantially final cylindrical shape and the connection plate 12 is arranged on the assembly thus obtained.
  • the winding of the stator 4, 4 'flat maximizes the filling rate of the coils which increases the induction created in the stator and therefore the electromotive force of the engine.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Windings For Motors And Generators (AREA)
EP13153668.2A 2012-02-01 2013-02-01 Elektrischer Motor mit einer haken aufweisenden Verbindunsplatte Withdrawn EP2624415A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1250949A FR2986384B1 (fr) 2012-02-01 2012-02-01 Moteur electrique muni d'une plaque de connexion a crochets

Publications (1)

Publication Number Publication Date
EP2624415A1 true EP2624415A1 (de) 2013-08-07

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EP13153668.2A Withdrawn EP2624415A1 (de) 2012-02-01 2013-02-01 Elektrischer Motor mit einer haken aufweisenden Verbindunsplatte

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EP (1) EP2624415A1 (de)
FR (1) FR2986384B1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
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WO2016110423A1 (de) * 2015-01-07 2016-07-14 Robert Bosch Gmbh Verschaltungsplatte für einen stator einer elektrischen maschine und verfahren zum herstellen einer solchen
EP3039296A4 (de) * 2013-08-29 2017-05-24 Dresser-Rand Company Schnittstelle zur übertragung von elektrischer energie an einen motorkompressor
EP3220512A4 (de) * 2014-11-11 2017-11-01 LG Innotek Co., Ltd. Motor
DE102016223003A1 (de) * 2016-04-29 2017-11-02 Robert Bosch Gmbh Stator für eine elektrische Maschine sowie eine elektrische Maschine mit solch einem Stator
CN110048534A (zh) * 2019-05-12 2019-07-23 苏州新智机电工业有限公司 一种电机定子绕组连接板
EP3528370A1 (de) * 2018-02-16 2019-08-21 Bühler Motor GmbH Stator mit einer wicklungsverschaltung
EP3641104A1 (de) * 2018-10-18 2020-04-22 Bühler Motor GmbH Gleichstrommotor und verfahren zur herstellung eines gleichstrommotors

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5110212B1 (ja) 2012-01-31 2012-12-26 株式会社富士通ゼネラル 電動機

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DE202010014425U1 (de) * 2010-10-20 2011-01-20 Robert Bosch Gmbh Isolierendes Halteelement für Phasenpotential-Schienen
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US7739788B1 (en) * 2004-12-02 2010-06-22 Maxtor Corporation Support structure with integral retainer tabs for use in spindle motor wire routing
US20060186753A1 (en) * 2005-02-21 2006-08-24 Samsung Electro-Mechanics Co., Ltd. Stator and electric motor having the same
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EP3039296A4 (de) * 2013-08-29 2017-05-24 Dresser-Rand Company Schnittstelle zur übertragung von elektrischer energie an einen motorkompressor
US10432060B2 (en) 2014-11-11 2019-10-01 Lg Innotek Co., Ltd. Stator insulator with protrusions for mounting bus bar
EP3220512A4 (de) * 2014-11-11 2017-11-01 LG Innotek Co., Ltd. Motor
US11018551B2 (en) 2014-11-11 2021-05-25 Lg Innotek Co., Ltd. Motor
US10700574B2 (en) 2014-11-11 2020-06-30 Lg Innotek Co., Ltd. Motor
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DE102016223003A1 (de) * 2016-04-29 2017-11-02 Robert Bosch Gmbh Stator für eine elektrische Maschine sowie eine elektrische Maschine mit solch einem Stator
CN110165808A (zh) * 2018-02-16 2019-08-23 标立电机有限公司 具有绕组接线部的定子
KR20190099137A (ko) * 2018-02-16 2019-08-26 뷜러 모토 게엠베하 권선 접속부를 갖는 고정자
EP3528370A1 (de) * 2018-02-16 2019-08-21 Bühler Motor GmbH Stator mit einer wicklungsverschaltung
EP3641104A1 (de) * 2018-10-18 2020-04-22 Bühler Motor GmbH Gleichstrommotor und verfahren zur herstellung eines gleichstrommotors
CN110048534A (zh) * 2019-05-12 2019-07-23 苏州新智机电工业有限公司 一种电机定子绕组连接板
CN110048534B (zh) * 2019-05-12 2024-05-31 苏州新智机电工业有限公司 一种电机定子绕组连接板

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FR2986384A1 (fr) 2013-08-02

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